Muriithi, R., & Kamau, P. [Data card 42478 for plant Verbenaceae Premna: Known as Murusapungu in Giriama.
Chicago-viite (17. p.)Muriithi, Richard, ja Peris Kamau. [Data Card 42478 for Plant Verbenaceae Premna: Known as Murusapungu in Giriama.
MLA-viite (8. p.)Muriithi, Richard, ja Peris Kamau. [Data Card 42478 for Plant Verbenaceae Premna: Known as Murusapungu in Giriama.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.